Door-operating means.



W. M. SMITH.

DOOR OPERATING MEANS.

APPLICATION FILED OCT. 4. l9l6.

1,276,431. Patented Aug. 20, 191&

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W. M. SMITH.

DOOR OPERATING. MEANS.

APPLICATION FILED 0CT.4. ISIS.

Patented Aug. 20, 1918.

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THE NORRIS PETERS CQH-FMOYD LINIQ. WASHINGIDN, By (L W. M. SMITH. DOOR OPERATING MEANS. APPLICATION FILED OCT-4, I916- 1,276,431. Patented Aug. 20, 1918.

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] Patented Aug. 29, 1918 Application filed October 4, 1916. Serial No. 123,690.

To alt whom it may concern:

Be it known that I, \VARRENM. SMITH, a citizen of the United States, and a resident of Moores/ county of Delaware, State of Pennsylvania, have invented certain Improvements in Door-Operating Means, of which the following isra specification.

My invention relates to certain improvements in means for operating hinged doors, especially those of passenger cars of the city and suburban type. Y

One object of my invention is to provide means for positively turning the doors and at the same timeallowi'ng them to slide into the open or the closed positions.

A further object of the invention is to provide means for positively moving the upper end of the door with the lower end and connecting the operating mechanism onlyat one end of the doors A still further object of the invention is to provide means for suspending the doors at the upper end, the operating mechanism being attached to the lower end of the doors.

In the accompanying drawings: I Figure 1 isa perspective view showing the operating mechanism for the doors, the doorsbeingindicated by dotted lines;

Fig. 2 is, a transverse sectional view through a'portion o a car illustrating the mec 'anism, the doors being in the closed position; 1

Fig. 3 's a plan vi w of the lower operating mechanism, the doors being in the closed position; v

Fig- 4 is a side view looking in the direction of the arrow,'Fig. 3, showing the doors in dotted lines; and f I Fig. 5 is a perspective Referring to the-drawings, 1 is the body of the car.v 2 is a platform inthe present instance. 3 is the heading and 4 and 5 are Mounted on the .headingf' the two doors. are two sets of rails 6 running parallel with the sides of the car. These rails, in the present instance, are formed of angle irons and act as supports for the trolleys 7 which have a spindle 8 on which the hub 12 is mounted, the hub having flanges 13 which are secured to the upper edges of the doors.

The trolleys have wheels 9 which travel on the rails and carry a vertically arranged guide roller 10 which travels in the slot between the two rails 6and is preferably provided with a flange, as at 11, so as to hold the view ofthe hangen.

trolley in the proper position. t On each hub 12 1s a toothed segment 14, which meshes with a rack.15 secured in the heading 3 so 7 thatas the doors are turned to theiopen. po sition the racks move the doors-bodily apart in order that each door may have two move} mentsone on the pivot and one longitudi nally. ,At the lower end of the, doors is the controlling 'm'echanism, similar 5 to that at the upper' end. A toothed segment .16 meshes witha rack 17' and has a flanged extension 18 which is secured to the door. There is one of these mechanisms for .each door. The pivot shafts 19 to which the segments 16 areattached are in line with the spindle 8 of the trolleys 7 and they are adapted to grooves 20 formed by the two plates 21 and 22, in the present instance, so 7 that as the shaftsv 19 are turned the segments 16 will travel on the rack 17. At the lower end of each pivot shaft 19 is a swiveled head 23 which is connected by rods 24 toarms 25 o'n-a transverse shaft 26located' under the platform 2, as clearly shown in Fig. 2, and on this shaft 26 is an arm 27 at-] tached to a rod 28 which is connected to any.

suitable operatingv mechanism, such as 29,-

the'movementiof the shaft 26 the doors are closed and are turned in closing in thereverse direction.

r, Thev invention is particularly adapted for use'in'controlling a pair of doors of a city or suburban railway car, but .it will be understood that it can be used for controlling.-

other doors, if desired.- It isessential that these doors shallbe mountedso that they can be readily manipulated by the operator and quickly moved either to the open or the closed position.

Furthermore, it is essential to provide a pivots, but will also slide back toward each side of the doorway so that when a door is open it will not project beyond the side of the car.

. By constructing the doors in this manner the inner edges of each door are located back of a strip 30, forming part of the door frame and these strips act as stops for the doors when in the closed position.

I claim:

1. The combination in car door operating mechanism, of a platform; two doors at one side of the platform; means pivotally suspending the doors; a transverse shaft located under the platform and connected to the lower portions of the doors on a line with the pivots so that on turning theshaft the doors will be moved toward or from each other; fixed racks extending parallel with the doors, when in the closed position; and a segment on each door engaging the racks and acting to turn the doors as they are moved by the shaft toward or from each other.

2. The combination in meansfor operating car doors, of a platform; two doors located at one edge of the platform and arranged edge to edge, when closed; a frame; fixed rails on the frame above the doors; a trolley adapted to travel on each rail; means for pivotally connecting the trolleys to the upper portion of the doors; guides located below the platform and extending parallel with the rails; pivot shafts in line with the pivots of the trolleys and located at the lower portions of the doors and adapted to the guides; a transverse shaft located under the platform; arms on said shaft; rods connecting the arms with the shafts; and means for turning the doors on their pivots as the doors are moved toward or from each other so that, when the doors are open, they are in a position at right angles to the side of the platform.

3. The combination in car door operating mechanism, of a car frame having a door way therein; a heading; two rails mounted on the heading parallel with the sides of the car; a trolley mounted on each rail and having a vertical spindle; a toothed segment mounted on the spindle; fixed racks meshing with the segments; two doors, one door being secured to one segment and the other door being secured to the other segment; and means for moving the doors toward and from each other, whereby they will be turned on their pivots by the racks and pinions.

4;. The combination of a frame having a doorway therein; a heading; two doors arranged to be opened and closed; rails in the heading extending parallel with the doors when in the closed position; a trolley mounted on each rail and from which the doors are pivotally suspended; guides at the lower ends of the doors; pivot shafts attached to the doors and adapted to the guides; said pivot shafts being on a line with the'trolleys; segment-s attached to the doors; a fixed rack with which the segments mesh; a transverse shaft; arms on the shaft; a swiveled head on each pivot shaft; and rods connect ing the arms with the swiveled heads so that on turning the shaft the doors will be moved toward and from each other and will turn on their pivots.

5. The combination of the frame of a car having a doorway therein; a heading above the doorway; twp doors located edge to edge when inthe closed position and closing the doorway; railsf in the heading extending parallel with the doors when in theclosed' position; a trolley mounted on each rail each trolley having stem; a hub pivotally mounted oneabh stem, each hub being secured to the upper portion of a door and having a toothed segment; a fixed rack with which the teeth of each segment engage; guides at the lower ends of the doors extending parallel with the rails; a pivoted'shaft attached to each door and adapted to the guides; a segment on each pivot shaft; fixed rails with which said segments engage; and means connected with said pivot shafts and locatedunder the platform of the car for moving the doors toward and from each other, whereby they will be turnedon their pivots by the racks and pinions.

WARREN M. sMrrn.

Copies of this patent may be obtained forfive cents each, by addressing the flommiaeioner of Patents,

Washington, D. G. 

